Impact of Receiver Orientation on Full-Duplex Relay Aided NOMA Underwater Optical Wireless Systems

Palitharathna, Kapila W. S.; Suraweera, Himal A.; Godaliyadda, G. M. R. I.; Herath, Vijitha; Ding, Zhiguo

doi:10.1109/icc40277.2020.9148810

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…In [23], a full-duplex cooperative relay aided underwater NOMA UOWC system has been proposed. In [24], the impact of receiver orientation on a full-duplex relay assisted NOMA aided UOWC system has been studied. Despite recent research on the application of NOMA for UOWC systems many knowledge gaps remain to be addressed.…”

Section: Introductionmentioning

confidence: 99%

Average Rate Analysis of Cooperative NOMA Aided Underwater Optical Wireless Systems

Palitharathna

Suraweera

Godaliyadda

et al. 2021

IEEE Open J. Commun. Soc.

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In this paper, we consider a cooperative non-orthogonal multiple access (NOMA) aided underwater optical wireless system in which the source transmits to two users where the near user serves as a relay node to the far user. Our proposed system consists of multiple narrow-angle light-emitting diode (LED)/photodiode (PD) elements at the source, near user, and far user. In order to achieve communication, our system selects a single LED/PD at each node. We propose several low complexity LED/PD selection schemes that aim to maximize the link throughput and in addition consider optimal and random LED/PD selection for benchmarking. In order to characterize the performance of each scheme, bounds and closed-form tight approximations on the average achievable sum rates are presented. The use of multi element nodes and NOMA increase the average sum rate significantly over conventional orthogonal access. Moreover, near-optimal throughput can be achieved using channel gain based and line-of-sight based LED/PD selection schemes in the medium-to-high transmit power regimes. The derived expressions are also useful to investigate the impact of key system and channel parameters such as the source transmit power, power allocation factor, node placement, and the number of elements at each node.

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Section: Introductionmentioning

confidence: 99%

Average Rate Analysis of Cooperative NOMA Aided Underwater Optical Wireless Systems

Palitharathna

Suraweera

Godaliyadda

et al. 2021

IEEE Open J. Commun. Soc.

Self Cite

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“…Typically, a VLC system supports full-duplex communications [5]. In the downlink direction, the lighting infrastructure is exploited to generate the optical link to the receiver, e.g., IoT node.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study on the Use of Printed OLEDs for Wireless Data and Power Transmission in Light-based Internet of Things (LIoT)

Perera

Katz

2021

2021 IEEE 16th International Conference on Industrial and Information Systems (ICIIS)

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Visible light communication (VLC)-basedInternet of Things (IoT) designs are rapidly gaining attention due to their unique communication-friendly features such as the ability to support high data rates, free-spectrum usage, and inherent security. In addition, the same infrastructure used by the VLC system can be exploited to support optical wireless power transmission (OWPT). The Light-based IoT (LIoT) concept encompasses both wireless data and power transmission. Recently, the use of printed electronics (PE) technology has been considered as a highly attractive approach to implementing the LIoT concept, as PE will allow manufacturing energy-autonomous, low-cost and sustainable nodes that can be attached to virtually any object. In this paper, we study the problem of communication and power transfer purposes in the uplink direction. In particular, we carry out a feasibility study comparing the use of OLEDs and conventional LEDs for the mentioned tasks. The performance of actual stateof-the-art printed optical components are measured, evaluated, and contrasted with that of similar conventional (non-printed) components. We found that printed OLEDs, though exhibiting sub-optimal performance, offer a robust performance to be used as key components in the implementation of the LIoT concept.

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Multilink and AUV-Assisted Energy-Efficient Underwater Emergency Communications

Huang

Wang

2023

IEEE Internet Things J.

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Impact of Receiver Orientation on Full-Duplex Relay Aided NOMA Underwater Optical Wireless Systems

Cited by 8 publications

References 19 publications

Average Rate Analysis of Cooperative NOMA Aided Underwater Optical Wireless Systems

Average Rate Analysis of Cooperative NOMA Aided Underwater Optical Wireless Systems

Feasibility Study on the Use of Printed OLEDs for Wireless Data and Power Transmission in Light-based Internet of Things (LIoT)

Multilink and AUV-Assisted Energy-Efficient Underwater Emergency Communications

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